Server Fault is a question and answer site for system and network administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I recently upgraded one of my ubuntu machines to Karmic and I'm having trouble getting the permissions of /dev/raw1394 set to 0666.

They only thing this machine is used for is recording audio from a firepod which uses /dev/raw1394 via jackd and there are no other FireWire devices connected, so security around this device is not really an issue.

If I run as root, everything works as expected, but I have some folks that run the recorder that I don't want to have root access. However, I can't figure out which lines setup the perms

I've tied this:


And I have this setup (default install)

/lib/udev/rules.d/75-persistent-net-generator.rules:SUBSYSTEMS=="ieee1394", ENV{COMMENT}="Firewire device $attr{host_id})"
/lib/udev/rules.d/75-cd-aliases-generator.rules:# the "path" of usb/ieee1394 devices changes frequently, use "id"
/lib/udev/rules.d/75-cd-aliases-generator.rules:ACTION=="add", SUBSYSTEM=="block", SUBSYSTEMS=="usb|ieee1394", ENV{ID_CDROM}=="?*", ENV{GENERATED}!="?*", \
/lib/udev/rules.d/60-persistent-storage-tape.rules:KERNEL=="st*[0-9]|nst*[0-9]", ATTRS{ieee1394_id}=="?*", ENV{ID_SERIAL}="$attr{ieee1394_id}", ENV{ID_BUS}="ieee1394"
/lib/udev/rules.d/50-udev-default.rules:# FireWire (deprecated dv1394 and video1394 drivers)
/lib/udev/rules.d/50-udev-default.rules:KERNEL=="dv1394-[0-9]*",        NAME="dv1394/%n", GROUP="video"
/lib/udev/rules.d/50-udev-default.rules:KERNEL=="video1394-[0-9]*",     NAME="video1394/%n", GROUP="video"
/lib/udev/rules.d/60-persistent-storage.rules:KERNEL=="sd*[!0-9]|sr*", ATTRS{ieee1394_id}=="?*", SYMLINK+="disk/by-id/ieee1394-$attr{ieee1394_id}"
/lib/udev/rules.d/60-persistent-storage.rules:KERNEL=="sd*[0-9]", ATTRS{ieee1394_id}=="?*", SYMLINK+="disk/by-id/ieee1394-$attr{ieee1394_id}-part%n"

And I find these lines in /var/log/syslog

Apr 30 09:11:30 record kernel: [    3.284010] ieee1394: Node added: ID:BUS[0-00:1023]  GUID[000a9200c7062266]
Apr 30 09:11:30 record kernel: [    3.284195] ieee1394: Host added: ID:BUS[0-01:1023]  GUID[00d0035600a97b9f]
Apr 30 09:11:30 record kernel: [   18.372791] ieee1394: raw1394: /dev/raw1394 device initialized

What I can't figure out, is which line actually creates that raw1394 device in the first place.

How do you get /dev/raw1394 to have permissions 0666?

share|improve this question
up vote 3 down vote accepted

Found the answer here:

Short story is I created /etc/udev/rules.d/raw1394.rules and put this line in it:

KERNEL=="raw1394", GROUP="video", MODE="0666"
share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.